BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 378 46.2%
2 China 187 22.8%
3 Netherlands 96 11.7%
4 Germany 59 7.2%
5 France 46 5.6%
6 Canada 18 2.2%
7 Hong Kong 11 1.3%
8 Portugal 7 0.9%
9 Taiwan 4 0.5%
10 4 0.5%
11 Australia 2 0.2%
12 Norway 2 0.2%
13 Ukraine 2 0.2%
14 United Kingdom 2 0.2%
15 Trinidad and Tobago 1 0.1%